Third Fitna

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

The Third Fitna was a wave of revolts and civil war that broke out across the Umayyad Caliphate after the assassination of the caliph al-Walid II in 744, as rival claimants including Yazid III, Ibrahim ibn al-Walid and finally Marwan II fought one another for the throne amid growing resentment among non-Arab Muslim converts and eastern provincial factions over the Umayyad dynasty's narrowly Arab aristocratic character and its systematic exclusion of converts from real political power.

The instability opened the way for the Abbasid movement, organized clandestinely in Khurasan under the da'wa led by Abu Muslim, to raise open revolt in 747 in the name of the Prophet's own family against Umayyad rule across the caliphate. Marwan II was defeated at the Battle of the Zab in January 750 and killed fleeing to Egypt only months later, and the Abbasid dynasty that replaced him promptly moved the caliphate's own capital eastward, eventually settling it at Baghdad. The speed of the Umayyad collapse, from al-Walid II's assassination in 744 to Marwan II's own death barely six years later, left later historians treating the Third Fitna as a genuinely swift dynastic collapse rather than a slowly building crisis, however long its underlying grievances had been building beneath the surface.

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

The Abbasid movement that emerged from the Third Fitna's chaos framed its cause explicitly in religious terms, presenting itself as restoring rightful leadership to the Prophet Muhammad's own family, the Hashimites, against what it cast as illegitimate Umayyad kingship built on conquest rather than any genuine religious right to rule. That claim mobilized both Arab and non-Arab Muslim converts alike who felt excluded from Umayyad rule, giving the revolution a religious legitimacy its Umayyad opponents could not easily match on the battlefield or in open argument before their own supporters.

The Abbasid victory brought a dynasty that publicly emphasized religious legitimacy and scholarly patronage far more than its predecessor ever had, and historians read the caliphate's move of its own capital eastward, eventually to Baghdad, as also shifting its political and cultural center of gravity from Syria toward Persia and Iraq, a geographic consequence tied directly to the religious framing that had carried the revolution to its final victory over Marwan II. Historians of the period generally treat the Abbasid Revolution as one of the few successful large scale movements in early Islamic history to unite Arab and non-Arab converts behind a single religious and political cause, rather than along the ethnic lines that had structured Umayyad rule from its own beginning.